Attachment for spinning and twisting frames



Feb. 6, 1923. I 1,443,980

J. DYSON. ATTACHMENT Fo R SPINNING AND TWISTING FRAMES.

FILED Nov. 7, 1919.

Patented Feb. 6 1923.

JOHN DYSON, or DRACUT, MASSACHUSETTS, ASSIGNOR To GEORGE M. ARRAGG, or

LAWRENCE, MASSACHUSETTS.

ATTACHMENT FOR SPINNING AND TWISTING FRAMES.

-App1ication filed November 7, 1919. Serial No. 336,272. v

1 0 all whom it may concern:

Be it known that 1, JOHN DYSON, a citizen of Great Britain, residing atDracut,

in the county of Middlesex and State of Massachusetts, haveinventedcertain new and useful Improvements in Attachments for Spinning andTwisting Frames, of

which the following is a specification.

This invention relates to lifter motions for spinning frames, especiallycap spinning frames. V

In such frames, as now made, part of the lifter mechansm comprises arevoluble shaft which terminates in a screw which revolves with a sleeveslidable on the shaft carried in hearings in the frame. When the bobbinsare filled, the lifter mechanism should be in position so that thebobbin rail is down while doifing goes on, after which the sleeve whichcarries a hand wheel is pulled out to disengage it from the drivinggear, and the lifter and. rail are forced up by hand. After this isdone, the parts are reset and should be locked in posltion by means ofsuitable locks. Frequently, however, the operative forgets to lock theparts,vand when the machine starts, the sleeve, with its gear,disengages from the driving gear, with the result that the bobbin raildrops, breaking all the'ends and causing other damage.

This invention consists of a spring so placed that the gears willautomatically en.- gage, thereby dispensing with the locking mechanism.r

In the drawings, Fig. 1 is an elevation from the "front of a capSpinning frame showing the mechanism at one end, to which my inventionis applicable.

Fig. 2 is a section on line 22 of Fig. 1 showing some of the parts. 4

Fig, 3 is an elevation of my Spring'removed from the machine, and Fig.419 an end view of Fig. 3. 4

Fig. 5 is an elevation, partlyin section, showing another form of sprinand Fig; 6 is a section from the right on the line 6-6' of Fig. 5. r v

Fig. 7 is an elevation of another modified form of spring. Figs. 8'and 9Show other forms of springs.

In the drawings, A. represents the frame of a cap spinnin machine havinga stationary, spindle rail B which supports spindles 10 carrying caps 9,and C is a bobbin is represented by the bearing 23.

This lifter mechanism includesvvertical.

rods 12 which carry rail C, and are moved up and down by means ofchains, such as 13, which run over pulleys 14' and 15 and are attachedto a chain bar, such as 16, which has a vertlical end at 17 againstwhich bears the end of a screw 20.

The lifter shaft F terminates in screw 20 which passes through arelatively stationary bearing 22 and extends out through a Sleeve 30carried in bearings 23 fixed to the frame A of the machine.

This sleeve 30 is shown as carrying a collar 31 at the inner end andanother collar 32 just outside the bearing 33, as well as collar gear Kand hand wheel P. A suitable spline 8 fixed inside sleeve 30 rests in agroove 8 in lshai't F, whereby sleeve 30, with collars 31 and 32, gear Kand hand wheel P, all of which are fastened together, are slidable onshaft F and revoluble there-v with.

The driving gear H normally engages sleeve gear K, as shown in Figs. 1and 2. When it is desired toraise rail C by hand, wheel-t1 and the otherparts carried by sleeve 30 are pulled out by hand to the 1, whereby gearK is freed from gear H and and the Shaft F can be revolved to reset theparts. 7

Ordinarily a lock, such as shown at R in Fig. 2, which is practically agrav ty latch pivoted at40 adapted to be dropped down outside of collar32 or to be thrown back against a-Stop pin 41, is used for looking theparts in osition. This is to prevent gears H and from jarring apart, for

if they do separate, the bobbin rail 0 drops and the ends break.

e/This invention consists of a spring, such as L, preferably ,of thehelical compression 100 type, coiled around the sleeve 30 between 4position shown in the dotted lines in Fig.

collar 31 and that part of frame -A-which.

This springiL so on ages the collar and frame as to e normally inengagement and to engage them if the o erator forgets to Set the lock R.

epthe s eeve gear and driving gear '105 I pre er'to use a spring, suchas shown in Figs. 3 and 4, wherein the ends 60 are turned back 'uponthemselves at right angles pense with the lock entirely, and instead ofhaving a spring which bears against the collar 31, I may use a bowedspring, such as M, having ears 50 at one end attached by screws 51 tothe frame, and extending thence downward at 53, terminating in -a fork54 which embraces sleeve 30'just outside of collar 32. It is manifestthat when the parts are moved out, disengagi gears K and H, springM'will be pulled out to the dotted line position, but will resumeitsnormal position as soonas the parts are released. In-Fig. 5, K and 32are integral and, together with hand wheel I, are sweated, brazed, orotherwise fixed to sleeve 30.

Fig. '7 shows a spring S which is not bent,

around at the ends, but which may be made large enough so that it can bewound in on sleeve 30 or unwound therefrom by working in one end and,screwing it on.

As shown in Fig. 8 at D, I may use a hat wire coiled spring in place ofL or S,

or I may use'a round wire spring G shown In perspective in Fig. 9 havina loop 70 for attaching it to frame A, a b a loop 72 to extend aroundsleeve 30 and rest behind collar 32.

Springs such as L, S or D may be used with a lock such as R or springssuch as M or G in place thereof, and they may bear against any suitablecollar such as 31 or 32 fixed tosleeve 30. v

It is manifest that my invention may also be used on a twisiting frameor other machine having a revoluble and slidable gear such as K.

I claim:

1. The combination with a spinning machine having a frame, a movablebobbin rail and mechanism for raising and lowering such rail including arevoluble shaft which terminatesin a. screw, a sleeve revoluble with andslidable on said shaft, a driving gear, a sleeve gear revoluble with thesleeve. in poow 71 and.

and mechanism for raising and lowering such ralil including a revolubleshaft which terminates in a screw, a sleeve revoluble with and slidableon said shaft, a driving gear, a sleeve gear revoluble with the-sleevein position to engage and disengage said driving gear as the sleeve isSllid. along said shaft, and a collar carried by said sleeve, of aspring which so engages the collar and frame of the machine as to keepthe sleeve gear and driving gear normally in engagement.

3. The combination with a machine having a frame, a movable bobbin railand mechaniism for raising and lowering such rail including arevoluble'shaft Which terminates in a screw, a driving gear, and a gearrevoluble with and slidable on said shaft inposition to engage anddisengage said driving gear as it is slid along said shaft, of a springwhich so engages the gear and frame of the machine as to keep the gearand driving gear. normally in engagement. X

4. The combination with a cap spinning frame having a movable bobbinrail and mechanism for raising and lowering such rail including a revoluble mainshaft which terminates in a screw, of a sleeve revoluble withand slidable on Stud 1113,11 shaft, a drivng gear, a sleeve gearrevolublewith the sleeve in position to engage and disengage saiddriving gear as the sleeveis slid along said shaft, a collar carried bysaid sleeve, and a spring coiled around such sleeve which so engages thecollar and frame of the machine as to keep the sleeve gear and drivinggear normally in engagement.

'" In tesflimony whereof I have afiixed my signature.

JOHN D YSON.

